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Old 04-27-2006, 09:52 PM
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TopCatGr58 TopCatGr58 is offline
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Join Date: Jul 2002
Location: Portsmouth, Va.
Posts: 12,621
GM HEI IGNITION MODULES FOR 78-80XS11's

MainlyLinux description on what he's done, along with a
WIRING DIAGRAM, and some photos! The Wiring diagram is 900
pixels wide, but didn't want to shrink it and loose the printed
text in it possibly making it illegible, so bear with the side scrolling!
T.C.
Quote:
The modules I used are from 74-88 chev cars or 75-90 chev trucks.
I bought from our supplier at cost but anyone could easily just go to
the wreckers and pocket a couple.Obviously located in the distibutors
of said vehicles,below the rotors.

The Blue Streak or Standard numbers for the ignition modules is LX 301.
Its the old four pin modules.Any parts store should be able to cross the
numbers over to their brand, or even if they just use the years.

The most beautiful thing about this is its cheap,tested,and should last for years.
I did get around the advance problem by going to a bike wreckers and getting
the old style centrifical weights advance system with the vacume advance.
Those parts were about 20 bucks and easy to change over.

I set the timing to 10 degrees BTDC with vacume advance disconnected.
Bike runs fine.Have plenty of pics and even video.
And last...this set up can be adapted to any bike with the waste spark system.
Wouldnt take much to build one for my 650 twin.
Damn factory ignition box be gone...!All the blasted pages of BS
of people trying to hunt down or rebuild these things.....





__________________
T. C. Gresham
81SH "Godzilla" . . .1179cc super-rat.
79SF "The Teacher" . . .basket case!
History shows again and again,
How nature points out the folly of men!